Pressure vs Syphon

In the majority of applications, the Pressure Blast is favored because of it’s speed and versatility.

  • The Pressure Blast is a system in which the abrasive is in a closed pressurized tank with one hose carrying a mixture of compressed air and abrasive from the tank to the nozzle.
  • The Syphon Blast is a system in which two hoses, one for compressed air and one for the abrasive syphon, are connected to a gun which has a nozzle and an air jet.

In a choice between pressure blast and syphon blast where pressure blast can give 3 time faster production, profit argues very strongly in favor of pressure blast.

Pressure Blast Cabinets

  • 3 times faster than suction blast
  • Approved multiple dust collector with air motor shaker and powerful blower for clean operation
  • Particle velocities to 600 feet per second
  • Uses less compressed air as other types
  • Can operate on as little as 3 horsepower of air
  • Can use angle nozzles to blast inside of tubes
  • Uses any dry abrasive
Details & Specifications


  • Faster – about 3 times faster than syphon blast.
  • Particle velocity range – many pressure blasts are designed to operate from 1 to 125 psi.
  • Control of abrasive flow rate – the abrasive valve and the choke valve permit accurate control of the abrasive flow rate.
  • Operator fatigue – Reduced pressure blast nozzles are more compact and lightweight.
  • Maintenance – There are no air jets or gun bodies to wear out.
  • Longer abrasive life – Blast cleaning at high pressure greatly reduces abrasive life.
  • Pressure blasts throw more abrasive but at low pressure.
  • The abrasive breakdown per unit cleaned is reduced.
  • Can clean cored spaces.
  • Higher particle velocity – Critical in getting “tooth” on a blast cleaned metal surface.
  • Nozzle Variety – Can use special nozzles such as angle nozzle, cone blast 3600 nozzles, bottoming nozzles, and rubber tube nozzles.

Syphon Blast Cabinets

Syphon blast
  • Lower price – Pressure blast cabinets usually cost more than syphon blast cabinets of similar size.
  • Shorter Abrasive Change Time – Most syphon blast cabinets are designed so the abrasive can be changed in 1 or 2 minutes. Most pressure blast cabinets require 5 to 10 minutes.
  • Quicker recycling of Abrasive – In syphon blast cabinets, the abrasive is continuously re-cycled without interrupting the blast. In a pressure blast cabinet, the spent abrasive in the hopper will re-charge into the abrasive tank via the automatic fill valve after blasting stops, about 20 seconds.
Details & Specifications


  • Low initial cost
  • Tungsten carbide nozzle
  • 12 gage steel air tight construction
  • Integral dust collector with fan on clean air side
  • Uses any dry abrasive
  • No moving parts
  • Little skill to operate
  • Very low maintenance
  • No venting required